An unexpected rhenium(IV)–rhenium(VII) salt: [Co(NH(3))(6)](3)[Re(VII)O(4)][Re(IV)F(6)](4)·6H(2)O

The title hydrated salt, tris­[hexa­amminecobalt(III)] tetraoxidorhenate(VII) tetra­kis­[hexa­fluorido­rhenate(IV)] hexa­hydrate, arose unexpectedly due to possible contamination of the K(2)ReF(6) starting material with KReO(4). It consists of octa­hedral [Co(NH(3))(6)](3+) cation (Co1 site symmetry...

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Detalles Bibliográficos
Autores principales: Louis–Jean, James, Mariappan Balasekaran, Samundeeswari, Hagenbach, Adelheid, Poineau, Frederic
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2019
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6690467/
https://www.ncbi.nlm.nih.gov/pubmed/31417784
http://dx.doi.org/10.1107/S2056989019009757
Descripción
Sumario:The title hydrated salt, tris­[hexa­amminecobalt(III)] tetraoxidorhenate(VII) tetra­kis­[hexa­fluorido­rhenate(IV)] hexa­hydrate, arose unexpectedly due to possible contamination of the K(2)ReF(6) starting material with KReO(4). It consists of octa­hedral [Co(NH(3))(6)](3+) cation (Co1 site symmetry 1), tetra­hedral [Re(VII)O(4)](−) anions (Re site symmetry 1) and octa­hedral [Re(IV)F(6)](2−) anions (Re site symmetries 1and [Image: see text]). The [ReF(6)](2−) octa­hedral anions (mean Re—F = 1.834 Å), [Co(NH(3))(6)](3+) octa­hedral cations (mean Co—N = 1.962 Å), and the [ReO(4)](−) tetra­hedral anion (mean Re—O = 1.719 Å) are slightly distorted. A network of N—H⋯F hydrogen bonds consolidates the structure. The crystal studied was refined as a two-component twin.

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